Using the Backbone games creation system, "Rick Dangerous The Other Levels" is an unofficial sequel to Firebird's Rick Dangerous 1 and 2.
Presented as a side-scrolling affair as opposed to the original flip-screen method used in the original titles, "The Other Levels" looks to be a more run and gun game rather than placing you in the position of being a laboratory rat, whereby you'd regularly get killed without warning, remember where it was you died, and then progress that tiny bit further on your next go, as Firebird's titles did.
There's clearly a lot more development work required on this title before it can be fully released, but you can see the current dev build in action below. (Note, it's not my reflection you can see in the monitor)