Great job submitting a game! This game is super charming. Love the minimal representation of the mouse. The game was a little too punishing for me personally. With how much you had to figure out by experiencing things first hand, like the spike cannon and the ice puzzle, I often died trying to figure it out. I got stuck at the second level facing the 2x2 rotating spikes. I could not figure out the timing and it was hard having to replay the entire level just to try something that didn't work.
If you were going for the hardcore experience, then I would say you knocked it out of the park. I would've kept trying but my hand cramped first haha. I also experienced a weird bug with the ice where the mouse would break from the grid every time I finished the puzzle.
I wish the beginning level jingle only played the first time you enter a level because I really wanted to be able to move immediately. Those few seconds that you can't move at the start adds up and discourages me from continuing.
I know what I've said so far may lean towards negative feedback but I really did have fun even if it was a little rage inducing. I love the aesthetics and running through each level many times makes you really good at navigating them, providing a sense of accomplishment and skill development, which I love. Thanks for participating!