I love the concept, the art style, and the whole Agent Slug vibe. I honestly wanted more. It felt too short because I was having fun.
The mission setup is great, too. Contract 01 being active, the target Slimy Jim, and the S.L.I.M.E. organization all give the game a funny but cool stealth-action identity.
The main thing I would watch is collision and cover behavior. I tried hiding beside one enemy, but he walked by and destroyed my cover, so I thought I was caught, but somehow escaped. I also managed to clip through the green door behind the big truck while exploring.
Overall, I had fun. The game has a strong concept, a fun tone, and I would definitely play more missions.