After finding an old local save file, I was able to painstakingly recreate the lost half of the game Blast 'Em! I had to revert the game version to 1.6.1 due to 1.7 being physically too big a project.

5/28/2017 - I've just joined Scratch!
12/3/2019 - Curated & Top Loved + Remixed
1/17/2020 - Curated & Top Remixed
5/28/2020 - I'm leaving Scratch.
11/22/2020 - My final Scratch project