Item description:

An accident at the biochemical lab has released a neurotoxin, and you've been quarantined after exposure. Maintain your sanity by playing a card-matching game.

The table is littered with 10, 20, 36, 52, or 72 face-down cards. Flip two cards, and if they show the same emblem, you keep them. If they don't, flip them back.

System Requirements
Concentration Room is designed for your Nintendo Entertainment System. This version is an NROM-128 (16 KiB PRG, 8 KiB CHR), and it has been tested on a PowerPak. It also works in PC-based emulators such as Nestopia and FCE Ultra.