This is probably the most look-a-like Dynaster clone for the C-64. Samar relased it some days ago. Sadly there is no multiplayer option, but the quality of the game is amazing.
Edit: Just read this.
Submitted by skull on 21 January 2007
Thx for comments!
Multiplayer mode coming soon ...
The game code can use many players (all properties player are indexed - teoretical in game may play even 256 players), but sprite's count is the limit (2 sprites for every player)
Ulitmate, game will be use 5 players : 4x joy (CGA interface is implemented) - 1 keyboard (i'll try to make player's sprites mulitplexer)
Now, i can bidding previous version game called "boombastic benny", it has good multiplayer mode for 3 players!