Very fun little game with nothing really bad to say about it! I absolutely adored the character designs, the power-up screen was just plain gorgeous, and the graphics and sound felt quite polished in general. It really felt like something I could have played on the GameBoy Advance back in the day. The stealth mechanic and combat also worked very well, I think the only thing I'd add would be the ability to "wait out" the alarm and return the enemies to their normal state by staying out of sight long enough, as opposed to having to die or leave the room. The robot boss was also quite creative and unique in its combination of platforming and combat.
I quite enjoyed the humor and interactions between the main characters, and would love to see more of their adventures in the future. So far, definitely a strong contender for the top spot from me!