Thanks LowPolyFreak!
Rolling isn't the intended way of getting more charge, there is a tutorial at the start saying E to interact on the trash bin but I feel that hasn't been obvious enough. I have added in the speech bubble that I will add in after the jam to make it more clearer :)
And yes! In the future there will be more ways to interact with the environment with the explosions - the intention was to make a playable vertical slice, rather than a full game from start to finish
Thanks for the feedback though, it's super appreciated ☺️