This week's Humble Bundle focuses on the works of Mastertronic. You can pay what you want for Montague's Mount, Blast End and its source code, May's Mysteries: The Secret of Dragonville, The Shopkeeper, Richard and Alice, Speedball 2 HD, and The Chaos Engine. Paying more than the average of around $3 presently gets you those games alongside Concursion, 10 Second Ninja, and early access games in the form of ORBITALIS and Over 9000 Zombies. Paying $15 or more gets you Tango Fiesta and Dream in early access alongside Runers.