Thanks for playing! Good news: the boost is in since 0.2.0. Everything you smash fills the boost meter at the bottom right; hold Shift (or A on a gamepad) to fire it. Smash more, boost more :0)
nice polishing! Just left my voting :) I also do like the combos and extra for mailboxes and fences! It got a bit of lag now on my laptop but it was still great fun to do the dayrace :)