This looks great! Love the play with the colors and it shows that even with couple tone variations you can get some nice environments done.
The general "aim to punch a hole"- system was a good concept but noticed that occasionally the guards were able to shoot the player even though they were on a falling platform, of which I don't know if it's intended or not.
Additionally I feel the gameplay could have some obstacles in the path through what you cannot go through as easily but the player should plan the path a bit. Apart from those and the occasional bugs which mostly were collision errors (annoying as they are) gameplay was enjoyable.
Viewing post in Hole Punch! jam comments
I considered making walls that couldn't be broken, but I found the gems to be a better solution, since these force you to go via a spot, rather than forcing you to avoid a spot (opening extra paths, but still adding challenge). As for the bugs... Believe me when I say there were many sleepless nights fixing far weirder bugs than you see here. Thanks for playing, and for the feedback!