Picking up a jar of Bomb Paste upgrades your bombs into 'Sticky Bombs'. Bomb paste appears as a white jar with a red "P" on it, and is sold in bomb shops or can be found randomly within crates. Additionally, a guaranteed Sticky Bomb upgrade can be found by killing a Giant Spider. Once you have obtained sticky bombs, the bomb icon on the top of the screen will change. You do not run out of paste however many bombs you use, and the upgrade is irreversible.