Maybe some kind of handgrab locomotion or a simple teleport reduced to the Gameplay area may do the job.
Difficulty is more or less balanced, some times the ranged enemies shoot you through walls or terrain which is not fair. I would suggest including more power up maybe random dropped by defeated enemies.
One last thing, I got the finished game screen the second time I played it losing to the boss, should I get a you lose screen instead?
As I said, good game concept! Good work.