Absolutely everything is 100% complete—all missions completed, competitions completed, towers unlocked, upgrades collected.

Steam version. But it should work on a pirated version too (I haven't personally tested it).
The game is 100% complete, all missions and competitions completed, towers and upgrades completed.
I don't know, maybe someone will find it useful, but you're welcome.
Installation:

Find the path C:\Program Files (x86)\Steam\userdata\numbers\1465360\remote
Copy the files from the archive there and replace them.
And yes, be sure to back up your save before doing this.

Author: Go_Go_Daddy