I am studying game design at uni and one of my assignments was to make a shmup prototype in Unity. Original Thread
The CO2 Catcher is a little robot that has so shoot up all the rising CO2 and other greenhouse gasses with his anti greenhouse gas gun. There is a power up that gives you a net that stops CO2 and if you combo 10 hits without missing you can drop a seed that spawn a tree. The tree sucks in the CO2 for a short time before you have to combo and spawn another. Health is lost when you fail to stop the rising CO2. Even though it's just a prototype I really enjoyed making it with my partner and would love to hear what you think of it.
Not too bad - it's an okay game for a prototype, managed 362 on the first level on my second attempt. If you were to continue working on it, I would suggest making each level unlockable when you've gotten past a scoring threshold on the previous level.
It'd be nice if the game kept track of your maximum combo instead of resetting it to 0 any time you plant a tree, and track that along with hiscore. Just have a special meter build up that requires 10 in a row for the trees?
Trees have a bit much delay before they kick in. It's enough of a delay to wait for the shot to land, but it takes a while for the tree's vacuum to kick in, so you're not sure if it's safe to keep shooting or if your next shot will miss because the bullet you were aiming for suddenly got sucked in.
Graphically, it would be nice if there were some kind of indication as to which nets you've laid are getting weak and are about to be destroyed so you can prepare by layering more at that location. It could also use a few visual improvements, like having the cows actually animate/change direction. Seeing the planes fly at low altitude behind the buildings is a bit amusing, too.
My only major issue is the controls - Ctrl is the shot key (or mouse click) but then you have C and V as the special abilities. It's a bit uncomfortable to stretch my pinky out to reach 'em, three button shmups like the Touhou series or Blue Wish Resurrection use Shift, Z, C, X, V. Basically, keep all your buttons close together so you can have one hand with all the fingers on the shot buttons. Using the mouse click doesn't feel natural either as then, with your left hand on WASD, your thumb tends to rest on the spacebar and not on C, V.
