Oooh thanks for taking the time to try and comment such a detailled message.
You know how the jams work, we planned many monsters and stuff and ending with the ones we had time to do ^^.
But in the game we already have ranged blob (red and blue) as well as mini-boss each 5 levels (big red blob with 4 different attacks)
The blob color was obviously just a cheatcode to make more enemies easier :)
More enemies and waves diversity as well is the next thing we would do if we continue this one, probably with cleaning the assets & the sounds.
Which wave did you reach ? Did you get the 4000 upgrade ?