Choose by the code you want to understand. These comparisons use the actual mechanics and source of the included games.
Both games use Canvas, but their movement models differ. Choose Neon Snake when you want to understand cells and a growing trail. Choose Cosmic Breakout when you want to understand a moving ball, velocity, and a paddle that changes the next bounce.
These two templates both use HTML buttons and update after player input. Pixel Pairs adds hidden information and a short delayed action. Three in a Row adds alternating players and several possible end states. Pick the one whose state-management problem you want to learn.
Orbit Dodge and Reflex Lab both ask for quick input, but their code runs on different schedules. Orbit Dodge keeps moving every frame. Reflex Lab waits for a scheduled cue and then measures one input. Choose based on whether your project needs a simulation or a timed interaction.