This game is like if Super Mario 64 and Sonic Adventure had a baby.
In its current state Ellie and Osh isn't really a game. It's a test level with all sorts of assets strewn about. Moving around as Osh feels satisfying and I liked just how many ways he can move around the level when the various obstacles are involved. I really liked going up slopes like it was Sonic. I liked how Osh slowed down and sped up. Though when going in the loop de loops I had to awkwardly move Osh around to keep him on the loop. The camera also obscures the player. But I'm sure this is an artifact of this game being so early in development.
I didn't like him main bat attack. The small hitbox of the bat makes me end up getting hit instead of hitting the enemies (not that the enemies are much a threat anyways). Luckily the homing attack is effective (does the homing attack home in on springs and other obstacles? If not it should). Also when swimming Osh feels like he's going too slow or too fast.
I enjoyed this little playground and plan on collecting more goals. I'm excited to see an adventure form from this. This is a solid start.