If your question is "Can I submit this game to the flash portal"? Then the answer is yes and no . RPG Maker does not export games into either Flash or HTML 5, which is the file type required for the flash portal submissions. Rpg maker uses a completely different and incompatible frame work than either Flash or HTML 5 as it was made with the idea to export your final game as an installable .exe for windows.
However, if you knew HTML 5 or flash, you could recreate the game and then upload it to Newgrounds! So this would be the Yes part.