After watching some videos of Denji Sentai Megaranger (also known as Power Rangers in Space), I came to a quick realization of a particular weapon of theirs.
Have you ever why the Megaranger's combined weapon does not included Mega Red's Drill Saber (PR: Spiral Saber)? I know I did. It had took me awhile, but I had thought about a possible reason.
Considering that the Japan's Megarangers was more of a technology/digital based sentai than space based as we suspected Power Rangers in Space to be, the possible reason that Mega Black, Blue, Yellow, and Pink weapons combined together without Mega Red's is because the colors of the corresponding rangers matches the CYMK color scheme (Cyan Yellow Magenta Key (Black)), in which pink is substituted for magenta, and blue for cyan. ^_^ What a creative concept Toei.
That's all I have to say for now. Have a good day/night.