Forum:Rainbow neos

We all know that rainbow neos is an ignition effect and according to my research, ignition effect can be activate manually as soon as it summons into the field, and not get countered by a trap of course ryt??...

example..

i fusion summon rainbow neos, and my opponent activates bottomless trap hole

the question is:

can i still activate rainbow neos effect???... please help me with this one thanks..