It's amazing that you managed to make a game and publish it in 4 days! Last year on GMTK2025 I didn't even manage to finish up the game in the 4 days.
Make sure you fully finish your game and publish the update after the jam, after all this is what game jams were made for!
And also, that's a really interesting mechanic exchanging your life for the extra time. I think I haven't seen that kind of an idea yet
Best of luck! I will be waiting for the Blasterr's update
P.S. There's another big jam, Brackeys Game Jam, in the 22nd august, hope to see you there too!