The differences are in the text files that come with the game.
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DynRPG edition of DBZ LOZ
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DBZ LOZ w/ extra features:
-PC Only
-60fps with visual filter
-monster health bar,ATB bar
-play time displayed on menu
-no auto-battle
-Errors don't close game, restarts it
-Hold SHIFT & press Enter to skip text
-F5 video options (filters, screen size, etc.)
Up to you if you choose this over regular version. There's some bugs however.
MINOR BUGS:
-lingering text box
-playtime still recorded even with window minimized
-monster health, ATB bars in animation battle cutscenes (i.e. Father-Son Kamehameha animation)
-Low chance of black screens (press "Num Key 1" to show screen. Only if no error shows and just black screen w/music still playing)
-Num key 3 to fix error, when Vegeta talking to people of Earth at Hercule City (If it occurs)
-'Play movie' only works in windowed mode (Earth Exploding movie black screen in fullscreen)