Badass: Page only had a few months of training before his first match. Afterwards, one of his opponents began to argue with Page about how some of the match had gone, but since he'd been around the business for several years as a manager, Page wouldn't back down. His opponent threw a punch, Page took it, grabbed the guy in a front facelock and choked him out. Reportedly Page was so angry the other wrestlers in the dressing room had to pull him off the guy.
Catch Phrase: "Self High Five" and "Get ready to feel the BANG!"
Later, in WWE, he built up a gimmick as a self-help guru: "It's not a bad thing, it's a good thing."
Also had "It's me, it's me, it's DDP."
Cluster F-Bomb: According to Mick Foley, DDP is a walking example of this; he jokes that Page "uses at least two f-words to describe a newborn puppy." During one of their trips around the country, Page ended up screaming "Who put fucking cookies in my bed?!"
Demoted to Extra: Despite being in the top card at WCW, when he moved to WWE, he was put in an angle where he stalked The Undertaker and his wife. After he jobbed there, he was stuffed into the lower mid-card, given his "self-help guru" gimmick and never even came close to the main event scene.
This could have been Vince being upset that someone got over in another company without his doing. Only Vince can make stars after all.
Doing It for the Art/Awesome, Dear Boy: Page, however, never cared how he was booked during this period as he was so happy to simply be in the WWF that he was willing to do anything the writers (and purportedly the Undertaker) asked him to. And whether you liked the gimmick or not, there wasn't any doubt Page put his full effort into it to get it over.
Determinator: Page spent a lot of time with "injured ribs", and one of his trademark things was when he was too beat up to stand up he'd still try to pull himself back to his feet using his opponent's pants.
In real life, due to his advanced age and lack of natural athleticism, trained extremely hard and taped every match he had to study his strengths and weaknesses. He still went to wrestling school until he finally started working a full-time schedule.
Face-Heel Turn: After he first won the WCW World Heavyweight Title at Spring Stampede 99.
Foley, however, responded to this by making fun of Page's tendency to sleep in the nude: "It's not the cookies that I mind. It's the fact that you're rubbing your naked ass all over me."
Hold Up Your Score: In his heel run in WCW in 1995, his valet Kimberly would hold up scorecards whenever he executed a particularly effective move. Naturally, winning the match earned him a "10."
Impersonation Gambit: On the July 7, 1997 WCW Monday Nitro, Randy Savage was scheduled to face Masked LuchadorLa Parka. The match seemed to be going along as usual, with Parka doing his usual dancing and strutting. Out of nowhere, "Parka" hit a Diamond Cutter and unmasked as DDP and got the pin. This actually raised Parka's profile in WCW a bit, as, for a short time, he would walk out to the ring and Kimberly would be standing by the entrance and raising the sign of the Diamond Cutter. On DDP's section of WCW's website, someone asked how he got Parka to loan him his costume. DDP said, "I gave him a hundred bucks."
Life Imitates Art: That whole "Self Help Guru" schtick he had going towards the end of his WWE run? That led into this, where his "Yoga For Regular Guys" was able to help a disabled Gulf War veteran lose 140 lbs (and regain the ability to walk unassisted) over the course of a year. Also doubles as a CMoH and CMoA, as the guy was rejected by other Yoga instructors he'd approached.
His current work turning Jake Roberts and Scott Hall around appears to be nothing short of epic.
Nice Job Breaking It, Hero: One of the many factors that sunk WCW was the gimmick of using celebrities in actual matches, and worse, as PPV main events. While Vince Russo and Eric Bischoff deservedly get some heat for that (Jay Leno?), one of them was actually the brainchild of DDP himself. According to Page's own admission on The Rise and Fall of WCW, it was DDP who suggested the match of teaming him and Karl Malone against Hogan and Dennis Rodman to Eric Bischoff.
In all fairness to DDP, Karl Malone didn't actually suck in the ring all things considered.
Took a Level in Badass: Despite starting his in-ring career well into his 30's, he developed into a skilled wrestler.
What Could Have Been: DDP reportedly had two of his friends in his early days at WCW tape his matches for him so he could study them. His friends proceeded to add their color commentary to the matches. Later on, DDP joked he could make a fortune of these DDP matches with commentary by "Stone Cold" Steve Austin and Mick Foley.
Very shortly before his WWE career ended, the WWE bookers had decided to try pushing DDP as... wait for it... DDP. They let him go back to his old gimmick, and even started hyping the Diamond Cutter as a devastating finisher that could come out of nowhere. About 3 matches into his push, DDP fought Hardcore Holly. First DDP botched a super-plex and landed hard on the back of his neck, and a bit later Holly concussed him with a dropkick. The combined injuries ended his wrestling career.