Nice effort for a first jam submission!
As others have mentioned, the camera is a little offputting, and the instant death felt unfair. For future updates I would suggest adding a three-hit death with 1 second of invulnerability frames so you get a chance to say "whoops!" and step back. It would also benefit from a flashing "door this way" arrow since I didn't even realise there was a door in the first room. The small arrow on the ground wasn't enough of an indicator for me!
Some more sounds would be great, and I didn't see any of the screen transition limitation.
Cute art though!