Reminds me of the tile mini-game from Undertale. I think there's potential here but not as a randomized map. If you premade the levels you could design them as to have one solution requiring the player to think through how each tile affects the path out of the aquarium. The randomized levels just lead me to button mash until I escaped which wasn't very hard or fun. However, I still think with just some level design this game could be really fun. So good job.

I assume getting the eye is the end? Once I realised what tiles you could walk on it was much easier. I have no idea what the spacebar was supposed to do.