Risky Challenge / Gussun Oyoyo

Risky Challenge a strategy game by Irem
Vic and Vinnie (or Gussun and Oyoyo in the Japanese version) roam their world in search of Emily. The player has to help them by building a path or staircase for the two with the stones falling from the top of the screen. Sometimes you can also drop stones at the attackers who threaten the players.
The game looks like a mix of Tetris and New Zealand Story you are one of the first games from Irem on the M97 hardware.