Here's some miscellaneous ideas...
-Roll a random character. Dive to the bottom of all six of the random dungeons, in any order. You may also visit Terinyo, Lawentheolil and VD as far as Jharod. Wilderness encounters should be avoided. If you need a climbing set to access one of the dungeons, you can get the Pyramid one, but you can't kill Rahetep
-On New Year's Eve, roll a wand merchant. Try to win the game using only wands.
-Same as above, except roll a potion merchant and win using alchemy and/or thrown potions.
-On Christmas Eve, roll a non-drakeling character in explorer mode, wish repeatedly for and drink cursed potions of -stat- and potential -stat- until all stats are at 1. Discard all of your inventory in the wilderness. See how far you can get.
Hoping to win with every class, doomed. Archer, Barbarian, Bard, Beastfighter, Druid, Elementalist, Farmer, Fighter, Monk, and ULE Priest down.