Piper - Max range damage from 1600 -> 1520 (-5%)
Bull - Health decreased from 5200 -> 4900 (-5.8%)
Spike - Curveball angle reduced from 100 -> 50 (-50%), Distance from 200 -> 100 (-50%, will still cover the same distance after explosion.)
Rico - Health increased from 2400 -> 2600 (+8.3%)
Frank - Health increased from 5800 -> 6100 (+5.2%)
Darryl - Health increased from 4600 -> 4800 (+4.3%), Damage increase from 280 -> 300 per shell (+7.1%)
Personally, I'm a little bothered by the Bull nerf. He wasn't even that good to begin with, now Shelly will slap him around more easily.