This is incredibly cool!
It's so whimsical, even has a hidden tutorial on learning how to deal with the guards before the final part! The sound effects (especially with the pew pew and the no 2d-fication wall warning). The level deisgn is cool, the difficulty feels alright and even forgiving with the respawns, the cat.jpeg being the evil one is lmao.
I feel like 1d could be something where the character goes orthogonal to the 2d mode, but I can see it being tricky in general kek.
I'm so suprised on how the multiple modes of side view, isometric-esque, and 2d plane makes for wonderful gameplay and even in its implementation. Counting down dimensions lol.
The boss fight is a good test of the player skills, and overall...
Yeah overall, great game, I'm glad you've submitted to the game jam!