Very basic. The codes are a 1 and 2 structure and each row is roughly 30 blocks long. The brown is 1 and the grey is 2. When it says 'last - code - random', put in your answer (last, code, or random) there. The random supports up to 24, which fills the screen. Fun codes! (suggest yours in the comments!) HI! by @peterjhc - 212112221121111111111111111111212111211111111111111111111111222111211121111111111111111111212111211121111111111111111111212112221121111111111111111111
If you want to use the engine, just drag the Blocks sprite into your backpack. The blocks are Generate level [], which makes a custom level with the code, and Generate random level height [], which makes a random level by height, rather than a custom code, which is optimal for randomly generated level design.
