Pieces descend into a vertically oriented playfield from a fixed side-on perspective. The player moves and rotates each piece, then places it so that complete horizontal lines are formed and removed.

Play continues as the stack rises. The objective is to survive as long as possible and score by clearing lines; the available sources do not establish the exact scoring rules, modes, level structure, or progression system for this DOS version.

Keep the stack low and avoid creating isolated gaps that later pieces cannot fill. Prefer arrangements that leave flexible spaces for several piece shapes rather than building tall, uneven columns.

Because the exact speed and scoring rules are undocumented here, prioritize safe placement over risky setups. Clear lines before the playfield becomes crowded and reserve open space for long pieces when possible.