1. The play button could be slightly larger, and aligned between the 2 buildings.
2. When a new object is collected, a new object can instantly spawn in place. It feels weird to see an object created out of thin air.
3. The enemy and player hitbox are absurdly large to me, you might want to consider the size of the hitboxes.
4. The enemy seems to have weird movements when trying to move diagonal, but not at a 45 degree angle. The sprite doesn't reflect its movements.
5. It doesn't seem like the robot is defending the fire from out of control seekers, as the seekers are chasing the robot, not the bonfire.
6. Love the music loop, its simplistic and relaxing.