Hello, I've been recently working on an optimized TAS of this game and I hit a little snag that I don't understand. In all the speedruns the spider boss is killed in 4 hits (1 bowling ball, 3 fully charged clubs) even though it appears to have 50 hp. In my attempts it requires 5 hits since each hit does 10 damage.

Is there something I'm missing?

Also, as I'm going I'm creating a resources page here: https://tasvideos.org/GameResources/NES/TheFlintstonesTheSurpriseAtDinosaurPeak

If there's any information I'm missing or have wrong, please let me know, thanks!