well, i think this is a memory leak issue. not sure what's causing it. RoyLanga, your comments are most welcome. to push a crate, press the A button, and then press it again when the meter is in the red. i do plan on having health be restorable in the final version, and there will be saving your game. i make no promises about a difficulty setting, although it's a possibility. the gate colors are randomly generated, so it's just an unfortunate coincidence if it's been the last one you've guessed. the gates themselves are meant to be a bit of a challenge, and for you to get the correct code in, to be under pressure. i may alter how the gates work, i'll see how much of an issue others have with them. my suggestion for the gates is to start by guessing the colors which are either before or after the missing color, e.g. if you have: R ? B G, i would first guess Red, and if that didn't work, guess Blue, and then if that didn't work move on to either Green or Yellow. This way you are moving the cursor around the least, and it's easier to keep track of what you've already guessed.
i'm off to trying to find my leak.