In Chapter 1, when Vincent is talking to Reeve, a Deepground soldier gets a lucky shot and hits Reeve, his body collapses to pieces, with Cait Sith popping out. A few seconds later you see "Reeve's" detached head with swirly eyes.
Chapter 3 demonstrates that for how batshit the Deepground forces are, they're also incredibly huge dorks when an armored soldier drops in and then inexplicably starts doing exaggerated bodybuilder poses. And after you wear him down enough in the ensuing boss fight, he just tosses his oversized cannon aside and starts running after you with a Buster Sword knockoff!
In Chapter 5, segment where you play as Cait Sith is called Solid Cait.
Another amusing shout-out to the same series occurs later in the game where you can find Deepground soldiers hiding inside cargo boxes.
Whenever Yuffie is concerned, if you like her antics.
Yuffie: Oh Come on! Aren't you a little concerned? Vincent: Oh... Yuffie.. Long time no see...... How's your head?. Yuffie: Can you at least pretend to be sympathetic!?
Another great one is just after (or before...) your first fight with Nero. Yuffie appears and has a dramatic speech and is trying to sound all cool and awesome. After a short pause, Nero turns around, saying he has to get out of there. Vincent is similarly unimpressed.
Vincent gets onboard the Shera, and sees Cid piloting on the deck. Who promptly lets go of the steering wheel to walk over and greet Vincent, causing one of his staff members to call him out and force him to realize what he just did as Cid sheepishly ducks back on over to grab the wheel.
Alternative Title(s):Dirge Of Cerberus Final Fantasy VII
