Ask for advice on the level 4 problem of reloading machine soldiers

Now play 2 Zhou Mu, and the leading role level is129,99. After eating the enchantment breakthrough factor, the upper limit of each level increases by 10, but the level of oneself does not increase. We must continue to fight monsters and upgrade. I wonder if 9999 is full.

If upgraded, it is suggested that the Biological Palace entice the enemy rambler with 6000 experiences each, which will greatly increase the experience of 6W.

It is easy to upgrade. The snowmobiles near the spiral house cost more than 7000 yuan each.