SkypPeace is a simple game in both controls and gameplay. The player can use the Circle Pad, D-Pad, and the ABXY buttons to shift in eight different directions. Shifting is used to dodge enemies and grab collectables. The goal of each stage in Skypeace is to make it to the end of the stage without dying, while grabbing as many collectables as possible. The collectables will increase your rank for that stage, but are unnessecary to actually complete the level.
SkyPeace has 50 different achievements to complete, and these are where the game can become difficult. The achievements range from getting a certain rank on a stage, to finishing the stage without using a certain power-up, to only moving up and down.
There are three types of stages. The different kinds of stages are purely cosmetic, aside from the fact that it may make it difficult to see certain collectibles. The day stages are bright and sunny, featuring light-blue skies and white clouds. The only collectible that may be difficult to spot would be the diamond, if placed in the clouds.Sunset stages contain many colors between red and yellow. The sky is red near the top, yellow in the middle, with white and orange clouds at the bottom of the screen. In the middle, and a bit to the right, the sun can be seen on the skyline. No collectibles should be difficult to spot in sunset stages. Night stages have a dark-blue background featuring a night sky, speckled with stars, and blue clouds at the bottom of the screen. The moon can easily be seen in the top-right corner of the screen, and the planet(s?) stand out visibly on the right. The sapphire and flower collectibles may be hard to spot in these stages
The stages mostly follow a pattern that decides which kind of stage they are. The first stage is a Day stage, the second is a Sunset stage, and the third stage is a Night stage. This pattern is only broken by Drill Stage, which is a Day stage, and Stage 10, which is a Night stage, though Stage 9 is also a Night stage.
SkyPeace ranks scores using a specific chart, which is the same for every stage. There are six different ranks the player can get, though only four are shown on the chart. There is the (unknown) Rank, for completing the stage with less than 500,000 points, the C-Rank for completing the stage with at least 500,000 points, the B-Rank for completing the stage with at least 1,000,000 points, the A-Rank for completing the stage with at least 2,000,000 points, the S-Rank for completing the stage with at least 4,000,000 points, and the SS-Rank for completing the stage with at least 5,000,000 points. Points are calculated by multiplying the score by the combo multiplier. The higher the combo is, the higher the combo multiplier is, but no more is known about it.
SkyPeace has reviewed tepidly scoring a 6/10 from Nintendolife.