Can you elaborate on equipment issues?
You can actually pin items from the inventory onto a quickbar, but some of the control graphics still need those keys added. On keyboard, press P to pin an item in inventory, then press TAB to cycle through the quickbar selection in-game. Press E to use or equip/unequip the item. You can change these controls in Options. This will be more obvious once we add tutorials in the final game.
Syndicate Girl's dust attack requires being in the cloud for a bit before it takes effect. There's an audio cue when Onyx is being hit, but we will add a visual one as well. It will also be changed to leave a cloud trail as it moves, making the area of effect much more interesting.
For the Bunny H scene, we may be using the existing ones for an event, and will likely give them new ones in-game.