Thunder Cross is a horizontally scrolling shoot 'em up released in arcades by Konami in 1988. The player pilots the Thunder fighter, which can carry up to four "options". Three weapons are selectable, ranging from the Vulcan shot to the Laser and the Boomerang shot (which doubles as a ricochet weapon). Each level ends in a boss fight. After defeating the final boss, the player has to beat the game again, but this time on a higher difficulty level.