I've played it for a bit and I agree it could use a bit more work. The instructions suggest this was ported/created for PC and I feel like the iOS controls were a bit neglected. It feels really weird having to touch the side of the screens on an endless jumper. I'm really craving tilt controls. I also experienced some slight lag and issues with responsiveness.
The monsters and artwork are cute. I especially love the rainbow trail when you get a boost. Having some unlockables that alter more than just aesthetics would be great. There also needs to be a greater variety of obstacles/stages to keep things interesting. A type of XP/leveling system might be a neat addition down the road.
Overall, I think this game has a lot of potential and I'm excited to see what the dev does with it.