Unit 13 review. Classic Game Room presents a CGRundertow review of Unit 13 for the Playstation Vita. Released in March of this year, this game was developed by Zipper Interactive and was published by Sony. Unit 13 is not a story-based shooter. It instead relies on short, arcade-style missions that can be played and put down within about 10 minutes of each other. The game's controls and hit detection are also very solid, but the game does have issues with crashing the Vita itself. For that reason, be very cautious before picking this one up. This video review features video gameplay footage of Unit 13 for the PS Vita and audio commentary from Classic Game Room's Gabe.