Not fully tested, don't care much about this game, but here you go:

No more hunger (1 result)
60 d0 05 2c b1 11 46 fe 0a 01 96 24 01 ab
60 d0 05 2c b1 11 46 fe 0a 01 96 24 02 ab

The game has some kind of a virtual machine implemented, can't quite figure out how it's used, but just to be safe, let's re-route the functions changing the exhaustion variable to something more harmless:

Re-route the addexhaustion call (2 results, don't know why yet)
2c 91 14 62 2e 1a 07 00 00 25 94 01
2c 91 14 62 2e 1a 07 00 00 25 95 01

Re-route the clampexhaustion call (2 results, don't know why yet)
2c 92 14 62 2e 1a 07 00 00 25 97 01
2c 92 14 62 2e 1a 07 00 00 25 95 01

I don't have access to the full version, so i can't help you with that. Would you please explain to me how the demo crashed? I don't like leaving things half done, so I'll try my best to fix it.

PS: Assuming that the full version is for the PC, the fact that it's an executable rather than a flash game makes it most probably that it doesn't share the same (machine) code base with the online flash demo. Even if it's just a standalone flash game (as is the case with Machinarium), the updates since March (the month the game was published on kong) would have most likely changed a lot of things that aren't reflected in the online demo.