Hello hiddenone,
Thank you so much for your detailed feedback on my game! Cosmic Creatures was a little experiment to test the types of games I could make in MZ. I agree the grid-based movement was tricky to work with. In the future, I will probably look for a pixel-based movement solution to make the gameplay feel more responsive.
Thanks for letting me know about the map transfer bug. That event was something I meant to remove, but I forgot at the last moment. I had initially planned for more maps to give the player more chances at leveling up before the boss. Those maps were cut so I could finish the submission in time. It's actually cool you found the safe spot during the boss fight. I left it there intentionally to help the player out.
Once the voting period is over, I plan to release an updated version of the game with bug fixes, a more balanced upgrade/leveling system, and those extra maps. Thanks again for your comments. I'm glad I got to participate in this game jam.