Amiga
This website is a random collection of technical information about the amazing Commodore Amiga computer. I have interviewed some great programmers, disassembled many copperlists to see how some famous games achieved their amazing effects, and also added a section on hidden messages in various games. I will soon add all the technical documentation from the old Action website here aswell. Enjoy!
News
Geoff Crammond used sprites for the top of the tyres to give the impression of a faster frame rate.Geoff Crammond used sprites for the top of the tyres to give the impression of a faster frame rate. The tyres can update 50 frames/second, even though the game refreshes the bitmap display 5 times as slowly!
Amiga Power magazine intended to publish a 9 or 10 part 'Diary of a Game' to document the progress of Sensible Software's sequel Mega lo Mania II.Amiga Power magazine intended to publish a 9 or 10 part 'Diary of a Game' to document the progress of Sensible Software's sequel Mega lo Mania II. Unfortunately, the game was cancelled near the beginning of 1992 after only a few months, and there were only 3 diary entries in total published in the magazine.
Amiga games often generate graphics that are saturated with colour and animate fluidly. But how do these graphics get from DPaint to the game's screen?Amiga games often generate graphics that are saturated with colour and animate fluidly. But how do these graphics get from DPaint to the game's screen? Trenton Webb grilled Vivid Image until he got some straight answers.
Full of spelling mistakes, grammatical errors, blatant lies and invented facts, this book is one to avoid.Full of spelling mistakes, grammatical errors, blatant lies and invented facts, this Kieren Hawken book of recycled reviews is a homage to cut and paste and should be avoided at all costs.
A comparison of Jochen Hippel's original title tune from A Prehistoric Tale with Jogeir Liljedahl's remake called Nearly ThereA comparison of Jochen Hippel's original title tune from A Prehistoric Tale with Jogeir Liljedahl's remake called Nearly There
Dave Jones, programmer of Menace and Blood Money for Psygnosis, created a 7-part series in Amiga Format discussing how he wrote the game Menace.Dave Jones, programmer of Menace and Blood Money for Psygnosis, created a 7-part series in Amiga Format discussing how he wrote the game Menace. Dave also gave away some of the source code to the game on the coverdisk each month. The series ran from issue 7 (February 1990) to issue 13 (August 1990).
Andrew Braybrook's diary featured in Amiga Action as he converts his C64 classic Paradroid to the Amiga.Follow Andrew Braybrook's 3-part diary-of-a-game that was featured in Amiga Action magazine, as he converts his C64 classic Paradroid to the Amiga.
Zippy was one of the most high-profile crackers on the Atari ST scene as a member of the Medway Boys and later Cynix.Zippy was one of the most high-profile crackers on the Atari ST scene as a member of the Medway Boys and later Cynix. Zippy was responsible for creating more than 100 compilation disks (known as "menus" on the Atari ST).
Richard Aplin removed the alternative end-sequence from the Amiga version at the last minute.Richard Aplin removed the alternative end-sequence from the Amiga version at the last minute, figuring that it would be seen and printed in magazines and that it was a little bit risque for the time.
By typing a specific code word into memory, the intro sequence changes from a story about rescue to a filthy version!By typing a specific code word into memory, the intro sequence changes from a story about rescue to a filthy version!
An in-depth analysis of the differences between the 1988 and 1990 versions of Helter Skelter from Audiogenic.Audiogenic were notorious for re-releasing practically the same game multiple times on the Amiga (Impact, Graham Gooches cricket, World Class Rugby etc). Here's an in-depth analysis of the differences between the 1988 and 1990 versions of Helter Skelter.
The most interesting thing is how the Teque programming team avoided having to use many sprite tricks!Only just qualifying for a sprite trick analysis, the most interesting thing about Pac-Mania is how the Teque programming team intentionally avoided having to use many sprite tricks at all!
All 8 sprites were used to create a 16 colour score panel on the right hand side of the screen.All 8 sprites were used to create a 16 colour score panel on the right hand side of the screen. This allowed the game area to stay 16 colours and retained enough speed for some big enemies.
6 sprites are multiplexed across the screen to create a full screen scrolling background parallax layer.Programmer Stuart Cook enhanced the Amiga version by using 6 sprites multiplexed across the screen to create a full screen scrolling background parallax layer. The Atari ST version had a solid blue sky instead of the parallax background.
Sensible Software added a secret message to the end sequence.Sensible Software added a secret message to the end sequence of Cannon Fodder, and a second to the publisher logo.
In terms of gameplay mechanics, Paperboy must surely rank as one of the most ridiculous ever devised.In terms of gameplay mechanics, Paperboy must surely rank as one of the most ridiculous ever devised. If you think about what is actually happening in the game, almost everything in it is absolutely crazy.
The mystery of who defaced the end credits screen in the Amiga version of S.D.I. finally solved!While patching the Amiga version of SDI to run from a hard drive, I noticed a hidden statue of liberty picture along with a vandalised end credits screen. The mystery of who did this began, and in late 2014, the mystery was finally solved!
Programmer of Risky Woods, a game that featured an impressive 16 colour background pattern created with multiplexed sprites.Ricardo Puerto programmed the Amiga game Risky Woods for Dinamic back in 1992. Risky Woods featured a very impressive 16 colour background pattern created with multiplexed sprites. He also created the arcade game Biomechanical Toy, and a game for a theme park!
Interviews
Back in the glory period of the Amiga (1988-1993), I found the most interesting thing in the magazines were the interviews with programmers. All too often they asked very generic questions that could relate to almost any game. Now thanks to the internet, it's possible to contact some of my childhood heroes and ask them the technical details behind their creations!
- Alan Grier
- Bobby Earl
- Chris Sorrell
- Dave Semmens
- Doug Little
- Galahad discusses mastering Putty Squad
- Ian Moran
- John Croudy
- Keith Watterson
- Marc Djan
- Martin Pedersen
- Mick West
- Ned Langman
- Peter Johnson
- Ricardo Puerto
- Rob Northen
- Ronald Pieket Weeserik
- Subzero of Skid Row
Sprite tricks
The Amiga sprites were often overlooked by programmers that didn't think you could do much with 8 sixteen-pixel wide sprites in 3 colours, or 4 sprites in 15 colours. But several games showed off some technical wizardry and accomplished some amazing effects!
- Agony
- Brian the Lion
- Jim Power
- Pac-Mania
- Parasol Stars
- R-Type 2
- Risky Woods
- Rod-Land
- Saint Dragon
- Shadow of the Beast
- Stardust
- Stunt Car Racer
- Videokid
- WWF Wrestlemania
Comedy
Richard Aplin was the king of the startup-sequence. If the company that wrote the game he was converting prohibited credits being added, he would add a long message to the startup-sequence file. Teams like Sensible Software were also prolific at hiding messages in their games!
Maptapper
The ultimate Amiga graphics and level ripper!
Random Rants
- A Prehistoric Tale: Amiga Soundtrack Battle
- Amazing Paperboy Delivers!
- Auckland Bulletin Board Systems
- Defaced credits in the end sequence of SDI
- Helter Skelter version differences
- Hidden messages in Amiga games
- Worst Amiga Book Ever: The A-Z of Commodore Amiga Games by Kieren Hawken (Book Review)
Rips
Graphics and maps from various Amiga games!
- Barbarian
- Bart vs the Space Mutants
- Beach Volley
- Beyond the Ice Palace
- Bomb Jack
- Bomb Jack Beer Edition
- CJ in the USA
- CJ's Elephant Antics
- Elfmania Data Disk
- ESWAT
- Final Fight
- Human Killing Machine
- Ivanhoe
- Line of Fire
- Mega lo Mania
- Mickey Mouse
- Motorhead
- Nobby the Aardvark
- Obliterator
- Pac-Land Preview
- Postman Pat
- Raid Over Moscow
- Rolling Thunder
- Rygar
- Sensible Soccer
- Spy Who Loved Me
- StarRay
- Street Fighter
- Street Fighter 2
- Stuntman Seymour
- Terminator 2 Judgment Day
- Top Cat
- WEC Le Mans
- WWF European Rampage Tour
- Yogi Bear and Friends in the Greed Monster
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If you look inside many Amiga games, secret messages have been hidden by the programmers. Richard Aplin was the king of hiding messages in the startup-sequence file, and his Line of Fire and Final Fight startup-sequences have become legendary! The Sensible Software team were also prolific at hiding messages in their games.
A collection of technical interviews with Amiga programmers that worked on commercial software in the glory days of the Amiga (late 1980s to early 1990s!)
The Ultimate Amiga Graphics, Level and Map Ripper!
A random assortment of rants relating to the Amiga!
An explanation of how many famous Amiga games utilised sprites in weird and interesting ways