Fight your way through the randomly generated Fortress of Fantasm. Gather 5 keys and defeat the boss at the end, while beating down as many monsters as you can. The game starts off pretty easy, but it is hard as hell to actually finish.
Arrows/WASD = move; left, left or right, right to dash;
Z/J = Attack; press repeatedly, press with forward button or while dashing for different variations; hold down while mana is available to Manastrike;
Spacebar = Start game; pick up items; hold down to pass through doors;
1/2 = Switch character; 1 for spellblade, 2 for amazon;
Shift/P = Pause; check map; press Space on pause screen to use a potion, if available;
HOW TO USE DOORS: Go up to the door and hold SPACE for a second or so. This is to keep you from accidentally switching rooms, and to let you pick up items that fall on doors. Trust me, it's for the best.
If you want to know EXACTLY how the game works, you can read more info on my site: http://z10.invisionfree.c om/ASV_Forums/index.php?s howtopic=129