As an interesting point, how would the difficulty of the game improve? Would you somehow have less time to pick where to place the piece, like conventional Tetris, or would it require more accurate timing with the button?
the TV will start to walk away from you. but less timing on a piece MEANS you need to be more accurate at less time. so speed increase is the only way to go. either that or you'd have the whatever it's called lines building up from the bottom, after so many pieces it'd go up one and after so many "ones" it goes up it'll start to get a little complicated.
hmm - i would simply slowly shorten the entry delay and the move-phase delay... and maybe limit the number of entry/move delay resets. but to be honest: i am not sure how agile such heavily disabled people are. does it make sense to shorten timings / increase time pressure? i would rather vote for a slowly increasing game complexity and difficulty: either through rising garbage - though this also causes time pressure, or better: increasing piece complexity. so a level-up is a move from 4 block pieces aka tetrominoes to pentominoes to hexominoes etc. the same way it is done in growtris mode of my http://www.gravytris.de . because i think it would be unfair to impose any kind of time pressure to disabled people who can barely move their finger. but who still can think perfectly. on the other hand, one button gaming for mobile devices for non-disabled people - there one could shorten timings etc.
Of course not, until Mr. Rogers approves. But then his company has approved Tetris Attack and Tetrisphere.
here is my small tech-demo showing my version of ONE-BUTTON-Tetris: http://www.cubestorm.com/download/cubes ... chdemo.exe (direct EXEcute download - just download and start: no unzipping, no dlls) usage: just press space during entry delay: rotates during move delay: moves right with wrap around if both delays are over, then space simply drops. during lock delay, you can move again - this allows for slide under... somehow. at least if moving right into an overhang. thats it! i found it fairly playable! p.s. dont get upset if this demo crashes, its sadly in a very early buggy, "negative alpha" state... pp.s. how do you like the commando's remix?