Enemy strikes deplete Riki’s health-bar but this can be replenished by performing a high-jump (jump while squatting) to grab the icons that occasionally float along the top of the screen. As well as several types of food to refill your energy, there’s also a temporary shield, but they’re tricky to grab without taking any damage as the buffoons running backwards and forwards along the single-plane landscapes are infinite and quite quick too. They’re also pretty small, as is Riki himself. The level of detail isn’t too impressive on most sprites either but the mid and end-of-stage bosses are quite varied and a bit more detailed too.