Thanks for giving the game a try! Shame about the dizziness, there's a setting on the main menu that disabled the river's forced movement on the player which might help, but the mobius strip nature of the river definitely doesn't help with that sensation. We'd love to add some more map options into the game with both more simplicity and some with more complexity.
For the aiming controls, they work on the camera movement so the aim follows the direction of where you're looking, while holding the E button increases and decreases the throwing range. Once E is let go the ring is thrown.
Thanks for the feedback! It's greatly appreciated!! -- Chris