These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Undercover Cops
Awesome Music: All of the original Japanese version of the soundtrack (Which can be heard on the rare Alpha Renewal Version) qualifies, but special mention should go to The first level theme.
Freud Was Right: The thing that Clayborn keeps in his One-Winged Angel form's back to fire plasma bolts looks...familiar. Shouldn't be a surprise that this came from the same company that brought you R-Type.