Identifying Old Computer Game: Trap Balls in Squares - Likely Puyo Puyo

You're likely describing **Puyo Puyo** (1991, Compile).

Why It Fits

• "Multiple balls": Colored blobs ("puyos") fall in pairs.
• "Trap in squares": Connect 4+ same color → pop. Chain reactions clear "trapped" groups.
• "Move on": Clearing sends "garbage" (nuisance puyos) to opponent. Goal: survive / opponent tops out.
• Platforms: Arcade, Mega Drive, SNES, Game Boy, PC, PS1, Saturn, etc.
• Western Names: Dr. Robotnik's Mean Bean Machine (Genesis/Game Gear), Kirby's Avalanche (SNES), Qwirks (PC).

Other Possibilities

• Columns (Sega, 1990): Jewels fall in 3s. Match 3+ vertically/horizontally/diagonally.
• Tetrisphere (N64): 3D sphere, shift rows, match shapes.
• Puzzle Bobble / Bust-a-Move: Shoot bubbles to match 3+.
• Bejeweled (2001): Swap gems to match 3.

Puyo Puyo best matches "trapping in squares" (chain reactions) and competitive "move on" pressure.