Complex sentence: There have been several bonus packs for older products but currently Multimedia Fusion 2 standard and developer have 2 bonus packs by Clickteam and 2 bonus packs by third party extension developers.
Split into simpler sentences: There have been several bonus packs for older products. Currently Multimedia Fusion 2 (Standard and Developer) has two bonus packs made by Clickteam, and two bonus packs made by third party extension developers.