He's such a kind soul

I love how Luigi not only saves spike but gives him a little, "Hello," while tipping his hat.

And the last time Luigi saw this man he was bullying him and Mario

How sweet

Luigi is a sweetheart…I was just smiling and just thinking “You’re too good for this world….” @silenzahra little sis, @bberetd, @itsavee4117, @peaches2217, @keakruiser, @kelbreyworshipper, @nuctoria, @stripetkattelalala54, @pepperycar, @megamagimugi and @wahooitsamee I think you’d want to give this green clad hero all the adulations and praise to his sweet and kind personality…

Yeah, I remember watching the movie for the first time and thinking "heh, how polite of him to say hello in the middle of a battle". And of course, he was kind enough to defeat the enemies who were hounding Spike. But I'd say there's more to see here than just his kindness, look how cool and confident he is when he says that thanks to the star's power coursing through him. It was an interesting role reversal, with Spike cowering on the ground and Luigi standing over him, literally looking down on him, all confident. But while Spike was mean in that position, Luigi is kind enough to help him and then still choose to be courteous.