Deffinately like the visual part of the game, it could do with some animations here and there though.
Sadly this game doesn't seem to fit the theme at all, as there don't seem to be any invisible monsters. (Perhaps the "invisible" part of the enemy comes from what emotion it represents? But that's my best guess.)
The enemies could also do with some basic AI so they chase you, to make the game have a little more thrill to it. And there were too many hearts, which removed basically any feel of danger from the enemies.
Another quick note, it's quite easy to get a lot of hearts very quickly, since the 2 levels seem to reset every time you enter one, so to collect a lot of hearts you just have to go to the big level, then back to the small one, collect the hearts, then go back to the big one, and repeat.
This game could use a bit more work. But congradulations on keeping your motivation up and creating this submission!
We wish you the best of luck in future JAMs! :)
- The "E. server" development team.