I'm using Chrome. Sometimes I glitch to the top of the screen where I become stuck for no apparent reason. Bought a light vulcan cannon in the shop and cannot equip it even though the game keeps telling me to with the helpful trail of mini white arrows pointing to the weapon slot.
I figured I'd "try" the game and see what was what. Wow, this game really sucked me in and warped time all around me. Love the music. Love the premise of the game. Also, the game transitions from screen to screen really quickly. No bothersome animations that are cute the first few times you play, then make your eyes bleed later. Nice work people! Games like this are why I'm a K+ member!!