Can you guys break down for me precisely what the objective of BOH is? I've never actually played it, but hear glowing reports from those that have.
Why not play the demo?

I think it kind of feels like Doom in 2D. You run around mazes filled with traps, monsters, doors, keys, weapons etc, trying to get to the end of the level and beat the boss.
Edit - here's the overview from the web site:
BOH is a unique retro-flavoured puzzle-riddled maze game spiced up with thrilling action.
You move in claustrophobic, mysterious, dangerous battlefields searching for the Evil Masters, who throw countless enemies at you until you discover and face them in the final battle. Although your quests are made slightly less hard by the power-ups scattered all around, carrying out the missions demands lots of concentration and quick reflexes.
With BOH the fun never ends: new missions can be added anytime and you can even create your own! And, as if that was not enough, you can also customize entirely its audio-visual aspect!
BOH has been created with lots of passion and care to offer, with its oldschool style, a fascinatingly different videogaming experience.
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moto