How to Use Decompressor: http://www.youtube.com/watch?v=whanjyHhBO4 How to Mod Potion Effects: http://www.youtube.com/watch?v=sO1st9m4Fok Code List: Spoiler FIND (AMPLIFIER) LEVEL OF POTION, AND ON THE FIRST DOT TYPE: Hex: Level: 00 = Level 1 01 = Level 2 02 = Level 3 03 = Level 4 FIND (ID) FOR THE POWERUP/POTION AND THE FIRST 1 DOT TYPE: Hex: Potion: 01 = SWIFTNESS 02 = SLOWNESS 03 = HASTE 04 = MINING FATIGUE 05 = STRENGTH 06 = INSTANT HEALTH 07 = INSTANT DAMAGE 08 = JUMP BOOST 09 = NAUSEA 0A = Regeneration 0B = Resistance 0C = Fire Resistance 0D = Water Breathing 0E = Invisibility 0F = Blindness 10 = NIGHT VISION 11 = HUNGER 12 = WEAKNESS 13 = POISON 14 = Wither FIND (DURRATION) THEN SKIP 1 DOT AND TYPE... Hex: Time: FF = Infinite Time http://www.minecraftwiki.net/wiki/Status_effect Potion Effects Mod Demo: http://www.youtube.com/watch?v=7SRuEoVOk60