Yeah, that day my team and I were working on the game and we had a really tight deadline, and we ended up letting a very serious bug with variables in the game's code slip through. Luckily, I detected it in time and fixed it hours later. ;)
For the most part, it was just me. But I had help from some friends with the enemy sprites, and some to give their opinions on the overall theme of the game (since it was a group project for college), so I included their names in the credits at the end of the game. Since I did most of the work and the deadline was tight, the creation process was quite rushed, but it yielded a satisfactory result that I intend to develop into a full game in the future. :p