The 2D have a veeeeery similar weight. Yoshi obviously has a different one, though. But if you swift away too much in weight, or sacrfice the run button for example, you would kill the mario experince. Miyamoto f'cking nailed it with SMB1 - it's that brilliant.Which ones? They all play differently. Super Mario World is probably the heaviest game while SMB1 and SMB3 are the lightest.