Raptor Evolution

This is an edit of my previous review. It was originally at 5*, but now it's been dropped down to 3*. I still stand by with this game plays a lot smoother than Estoty's other breaker games, but the further I progress, collecting and upgrading gets extremely tedious. I would fulfill requirements to unlock an area, only to be blocked that I need an upgrade as soon I shortly get through that stage. I'm done with the snake and now I have to get to Evo 7, when I just got Evo 6 not long ago.

It was fun to start with except the constant ads interrupting game play. Paid to remove the ads. The game was fun and interesting for a little while after. Then, it was very much pay to play or spend a lot of time watching ads. Then, it became even worse with constantly having to wait to assemble things to progress and wait for energy to get components. After 5 in a row assembly steps that take money and/or time and give nothing interesting in the story while doing them, I gave up on this game.

It's really fun seeing the next evolution and how it changes the raptor. But I am stuck and can't get the 2nd egg. It says there is a key that you need but won't tell me or show me how to get it. Same thing with the missing valve, I tried looking around the whole map but can't find anything, so I'm stuck, and it's super frustrating. If anyone or the developers can help me out with this, it would be much appreciated because I can't find anything online about it.