The current demo features some unusual items a glider, a booster, gravity inverting particles, a puzzle cave and a jump spring. You will definitely spend a lot of your time in the air. Especially once you have found the booster.
The original prototype contained a jetpack, a teleporter, a booster, a gravity gun, a shrink ray, cloud-wheels, bouncy-wheels, a time machine, a force-field generator, an "eject" button, a "dash forward" jump, an item magnet and some rockets. Of course not all of them can make it into the final game, but some will ;-)
Combining items to reach new spots in the levels is at the heart of the game. Use them to overcome obstacles, unlock new areas and eventually, find new items.
Global highscores, teams, tournaments, pvp. In the final version you will find all these familiar features to make you feel at home. But there are some odd challenges too, like getting a huge ball into the goal as quickly as you can (rocket league anyone?).