There is a TP that weighs 1 KG and only needs 10 energy. But they kinda removed the only way to get it. So all new players are fucked. It's a really useful item when u think about it.
Anyway you still can get TPs that are level 15 or higher and there are a few that use less than 40 energy but theyre not nearly as good as the good ole' 1 kg TP or the level 3 -7 ones that do a bit of damage, weigh a few KGs and need little energy. Too bad you cant get any. Moving along;
The replay is also fine. For some reason colors dont show up correctly and energy doesnt show corectly until the player is hit. It will then show the energy left AFTER that hit. Kind of a bummer you cant see it properly but not a big deal.
To my knowledge, hackers cant change the replays, but there are all sorts of glitches ive seen with them, including things like a win showing up as a loss.
Hope this helps.