All together, Cosmic Express is the perfect combination of interesting puzzle mechanics, challenging-but-manageable stages, and lovable characters that keeps us coming back for more. There are some levels (we’re looking at you, Andromeda 14) that we’ve spent hours trying to figure out, yet we never grow tired of. This is thanks to the fact that there is no undo pressure to complete a specific stage, endless freedom to try as many combinations of track layouts as we like, and adorable aliens waiting along with us the entire time.