Pssst is a ZX Spectrum made by Ultimate Play The Game in 1983. In the game Robbie the Robot has to protect his plant (a Thyrgodian Megga Chrisanthodil) as it is attacked by various insects (Interstellar Space Slugs, Scuttling Leeches and Menacing Midges), each of which needs a different repellent. The original game was written by Tim and Chris Stamper.