Condemned: Criminal Origins (Xbox 360)

What better way to kick off the Xbox 360 era than with one of the most terrifying games available, Condemned: Criminal Origins. Instead of focusing on gunplay, the game pits you against terrifying enemies with an array of melee weapons. That means you have to come face to face with the world's deadly inhabitants and you can't look away. Outside of its sequel, horror games have never really replicated the same atmosphere Condemned introduced, and we'd love to see something similar in the future.

Call of Duty 2 (Xbox 360)

Activision's Call of Duty 2 proved one of the most popular Xbox Live titles of the early Xbox 360 generation, and for good reason. Going on to score a whopping 89 rating on Metacritic, the game offered "more immense, more intense, more realistic battles than ever before", and is still enjoyed today thanks to the power of Xbox backwards compatibility on modern consoles. Without a doubt, one of the most beloved Xbox launch titles (and COD titles) of the past 20 years.

Kameo: Elements of Power (Xbox 360)

Rare may have forgotten about iconic legends such as Banjo-Kazooie and Conker, but their stab at introducing a new hero known as Kameo was a great effort - even by today's standards. Bringing in elements of Rare's back catalogue, such as platforming and open-world adventures, Kameo: Elements of Power perhaps lends itself better to a Metroidvania, as you unlock the ability to transform into elemental warriors, each with a unique power. It's a pretty epic adventure that showcased the Xbox 360's power, and has become something of a cult hit.

Geometry Wars: Retro Evolved (Xbox 360)

Geometry Wars' first appearance was actually in Project Gotham Racing 2 as an extra mini-game. Due to its success, the Xbox 360 saw an updated version known as Geometry Wars: Retro Evolved, which proved to be a highly successful title. Providing addictive gameplay as you attempt to survive against waves of enemies in a twin-stick shooter, the explosion of colours is a symphony of action that had players attempting 'one more go' to beat their high score. Even today. Geometry Wars is a fantastic experience and one you shouldn't miss out on.

Perfect Dark Zero (Xbox 360)

A new Perfect Dark entry is on the way, but Perfect Dark Zero is still a mighty good time. As an Xbox 360 launch title, it was pretty impressive, offering both single and multiplayer game modes to dive into. With an open-ended level design and a modern interpretation of the classic Perfect Dark gameplay, it was a worthy introduction to the Xbox 360's lifecycle. You could even play the campaign cooperatively over Xbox Live. It's fair to say it got an underwhelming reception back in 2005, but anyone excited about the upcoming title should definitely give it a try ahead of its release.