The base idea is bound to be fun in an arcade-y manner, but unfortunately there are many bugs and imbalances in it to really achieve its due effect. The need to touch the thing shooting at you behind a wave of obstacles should some good tension if/when implemented well.
A short list of critical things to address:
+ ice spheres speed up too much after the player crosses half-screen (vs. player speed)
+ collision detection between player sprite and bullets are off (can hit despite a large gap)
+ there is a bug that makes the player sprite teleport/jump a short distance (no idea why)
This seems like an entry that is from someone still getting over the learning curve of their tool/software of choice. We've all been there with various tools/software at some point, and many of us still are. So keeping that in mind, good work on completing a game project in 48hrs.
Keep at it, and good luck in future jams/projects.