The objective is simple, to navigate single-screen challenges from entry to exit, then warp to the next level of escalating complexity. Locate and unlock warp points by activating switches, opening doors and finding special crystals. You’ll even be able to form ice blocks to help you negotiate dangerous gaps or reach high ledges. Stack them on top of one another, knock them over or toss them on top of spikes and switches. And if you get in a tight spot or plummet off a cliff, no worries! You can restart at the beginning of any level you’ve reached, allowing you to try again or go for better times.