Been learning Construct 2 for a month now, (free edition).
Here's a look at what I've come up with.
Player follows mouse on X axis, continually shooting up at the Gloop.
LMB = fires normal rocket that when exploding, causes gloop rate of decent to slow.
RMB = fires Super Rocket that slows the decent of Gloops caught in it's wake, then explodes with large damge.
R = Reset.
P = Pause/Unpause.
PowerUps drop for Blaster upgrade and both rockets.
When blaster is at max(30), each blaster drop gathered, increases your rockets damage output by 1. From 20(starting value) to 50(max value).
Whilst your rocket count is at 20, for each 10 rocket drops gathered, a Super Rocket drop appears.
Once all Gloops are cleared, a new wave commences, resetting your blaster to the wave level.
Hope I've shared this correctly and please, any feedback would be most welcomed.
I can't post URL links yet so use ya brain a bit to follow this one ;o)