Thanks a lot for reporting these things! This Health bug were reported more than once but oddly enough it didn't appear in our testings. We will fix this no longer than tomorrow! Thanks again. Please report if you find more bugs like that, those will be fixed in no-time =).
Did the health bug appear every match or just some of them?
Regarding content, yeah, will have a bunch of things planned, some are already implemented but not very balanced, so we are adding them over time. Did you download through the itch windows client? That way the game will automatically update, which is very handy, we'll be updating probably on a daily basis.
Thanks a lot! Feel free to report or ask us anything at all.