this doesnt work for me at all? keeps saying incorrect code
Yes. As r0ckh0und said, that code requires 0.25.1 (or later depending on when you read this). Also, don't type it in yourself, if you are. Copy and paste all the codes you wish to use to notepad or such before playing. You can then copy and paste them directly into the enter code input prompt so no typing should ever be involved.
And the money code is rather pointless when cheatengine works faster/better. Just use it when you buy a single cheap item in town, search for new value, repeat 3 times and should have your cash value to set it to 999999 and thus pointless. Also, speedup on cheatengine effects the physics/bounce rather than just increasing the animation speed alone so you can get a massive laugh during some scenes/events when that bounce goes from a magnitude 3 to a 9. If speedup doesn't work, disable vsync as it breaks it's function on unity.