update 21 — bugTDX Steam update #1191366

fixed tutorial not showing up fixed difficulty starting at 1 started the UI at 170% added a little colour to the grass flamethrower lvl 1: 0.8 dur -> 0.4 dur lvl 2: 1.2 dur -> 0.5 dur lvl 3: 1.8 dur -> 0.6 dur nailgun lvl 1: 300% mult -> 100% mult lvl 2: 600% mult -> 150% mult lvl 3: 700% mult -> 250% mult