A work in progress but currently has a commensal symbiotic item that requires permission of the host to fuse with it (unless neutral player for testing purposes). When fused with the item the holding unit gets a change in appearance and gains different weapons and stat bonuses. As both the unit and the item level up on kills (even when in inventory) the stat bonus increases and every few levels a new weapon is gained from the relationship (work in progress). Also contains an exp generator using a Battery type ability for testing purposes. Things still to be implemented are the last few weapons at higher levels, parasitic items with various nasty item based attacks (from mind control to classic Alien like chest bursters). Will also experiment with self propagating items within inventories when I get round to it.