I'll be reposting feats for Samus.
Speed Booster energy, newtons, tons-force, and g-force
The Speed Booster allows Samus to dash at supersonic speeds, according to the Metroid Fusion and Metroid: Zero Mission manual. Because this is in the supersonic range, the low-end would be 411.6 m/s (Mach 1.2). Of course, the fact that "speeds" is plural, I dare say it could be at least Mach 2. For now, I'll settle for Mach 1.2. Samus is known to be 90 kg., according to the Metroid II: Return of Samus manual. We can find all the information for what the title tells us.
Kinetic energy
KE = 1/2 * mv^2
KE = 1/2 * (90 kg.)(411.6 m/s)^2
KE = 7623655.2 J, or 1.82 kg. of TNT.
Newtons
F = ma
F = (90 kg.)(411.6 m/s)
F = 37,044 N
Tons-force
37,044 N * 0.22481 lbf. = 8,327.86164 lbf., or 4.16 tf
G-force
Since it takes Samus about 2 seconds in Metroid Fusion and Metroid: Zero Mission, this would require us to consider the initial velocity and final velocity. We would divide this by the time it took Samus to achieve supersonic speed. We take the final velocity and subtract it by the initial velocity and then divide by the time. So it would look like this.
a = vf - vi / t
a = 411.6 m/s^2 - 0 m/s^2 / 2 s
a = 411.6 m/s^2 / 2 s
a = 205.8 m/s
This means that after one second, Samus has gained 205.8 m/s (460.17 mi/h). This would also mean that 205.8 m/s / 9.8 m/s is 21 g, which is what Samus would be experiencing. Since Samus can stop and launch herself, she would experience 42 g. Of course, since the time varies, it could very well be a game mechanic.
Power Bomb yield
The equation I found to determine the yield for explosions is E = R^5 ρ / t^2, where E is the energy of the explosion, R is the radius, ρ is air density, and t is time. According to the Official Metroid Prime Web site, power bombs covered a radius of 10 m. Air density is 1.255 kg/m^3 at sea level, and the time it would take for an explosive, such as TNT (a common explosive in the military), would be 0.0014492753623188 seconds, or a little above 1 millisecond, but not anywhere near 2 milliseconds.
E = (10^5) * 1.255 kg/m^3 / (0.0014492753623188 s)^2
E = 59,750,550,000.0033460308000001405 J, or 14.28 tons of TNT.
Since the side-scrollers and Metroid: Other M seem to demonstrate a wider range, going up to 20 m. gives us a total of 456.98 tons of TNT.