Ever since Achievements were introduced there's been a "Complete the game in 8 hours" achievement. This was however introduced in 0.14 I think, when recipes for science packs were different and there were only four kinds of science packs. Luckily I managed to finish the game in 6 hours ba...

I have been playing on my freeplay world for 8+ hours and have found that biters don't hurt me, worms and spitters still hurt me but biters don't.