Excellent artwork and sound design.
Was fun to play, but I feel that the theme detracts from it. For example, if it weren't for timers, players could equip different nodes and use them more strategically. Nodes could be strong against certain organisms and weak against others. But, since they're so fleeting, you just grab whatever you can find. You could still make the nodes degrade based on their usage.
Some more variety of nodes would have been nice. For example, a dash node.