Edit Infobox GBA Homebrews: Thrust GBA

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{{#seo: |title= (Shooter) - GameBrew |title_mode=append |image=thrustgru2.png |image_alt=Thrust }} This is Grumpy Cat's tribute to the classic space shooter Thrust for the Gameboy Advance. It is based on the Atari ST version of Thrust by Alan Butcher. ==Features== * Complete game: intro, info screens, demos, high score table (and the game itself). All 80s style. * All 10 missions from the Atari ST version. * High scores saved to battery backed RAM. * Antialiased sprites and tether. * Reverse gravity. * Invisible landscape. * All-new sound effects. * Original Atari ST "Thrust" theme by Rob Hubbard. ==Controls== Left/Right - Rotate ship anti-clockwise/clockwise B - Thrust A - Fire R - Shields, Tractor beam L - Abandon game (without high score entry) Start - Pause ==Screenshots== https://dlhb.gamebrew.org/gbahomebrews/thrustgru3.png https://dlhb.gamebrew.org/gbahomebrews/thrustgru4.png ==Changelog== '''Version 1.00 2003/01/05''' *First release. '''Version 1.01 2003/03/04''' *Made "START" the pause key. *Clear BIOS interrupt flag and use VBLANK intr instead of spinwait. *Fix last character in Grumpy intro at wrong pos. *Fix ball tether centering. *Fix sound popping. *Fix dirty linedraw tiles after demo. *Fix end-of theme tune overrun. ==Credits== Jeremy C. Smith wrote the original "Thrust" for the BBC Microcomputer. The status display and font are from his version. The following tools were used to develop "Thrust": *STEEM - Atari ST emulator for ST "Thrust". *BeebEm - BBC Microcomputer emulator for the Original "Thrust". *Devkit Advance - Gameboy Advance code generation and libraries. *crt0.s lnkscript - Jeff Frohwein's Gameboy Advance linking and startup. *CYGWIN - X-Window System, GCC for Win32, vi, development environment. *Tile Studio - Font generation. *Quack - Synthesized sound effects generation. *Paint Shop Pro - Graphics editing. *FlashAdvance II - Flash card and linker software for the Gameboy Advance. The two main sources of information were: *"CowBite Virtual Hardware Specification" by Tom Happ. *"Audio Programming on the Gameboy Advance" by Chris Strickland. ==External links== * Author's website - http://www.geocities.com/grumpycatsoftware.

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