When Merlin was a young Sokoban man, he enjoyed life through minecart-surfing, skin-diving and burrow-crawling. Abusing glitchy spells and items, he wandered the world along with a frozen lady who came from the lake, in the Meanwhile, occasionally beating bad things like meanie trees, yestoday's launch and even a crouching dragon.
The author collects all heart pieces and other non-respawning items even without actually touching all of them. However, it is pretty sad that the prize T-shirt will never seem to be awarded with, although the "100% heart pieces collected" screen after the credits says so.